CN205096252U - Draw strong descaling mill - Google Patents
Draw strong descaling mill Download PDFInfo
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- CN205096252U CN205096252U CN201520859263.8U CN201520859263U CN205096252U CN 205096252 U CN205096252 U CN 205096252U CN 201520859263 U CN201520859263 U CN 201520859263U CN 205096252 U CN205096252 U CN 205096252U
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Abstract
The utility model discloses a draw strong descaling mill, including frame, entry slewing rollers, crooked unit and aligning the unit, crooked unit includes the upward first fast opening mechanism of bending roll box of bending roll box, lower bending roll box and drive, and the aligning unit includes leveling roller box, lower leveling roller box and drives the fast opening mechanism of second who goes up the leveling roller box, still includes the export slewing rollers, entry slewing rollers and export slewing rollers equal rigid coupling are on the frame outside, crooked unit is still including driving an elevating system of bending roll box down, the aligning unit still has the 2nd elevating system of the lower leveling roller box of two big roller footpath leveling rollers including the drive. The utility model discloses can not the upper and lower working roll roll surface of fish tail when draw strong descaling mill can make the belted steel welding seam pass through, two big roller footpath leveling rollers to aligning simultaneously in the unit are arranged in the belted steel below, have reduced mechanism's burden, set up a brush roll device at the draw strong descaling mill outlet side in addition, further get rid of the forge scale on belted steel surface behind the scale breading, improved the belted steel rate of descaling.
Description
Technical field
The utility model belongs to metal rolled technical field, is specifically related to a kind of straightening descaling mill be used in coupled pickling and tandem mill or continuous acid-washing unit before hot-strip pickling.
Background technology
In coupled pickling and tandem mill or continuous acid-washing unit, in order to improve the pickling efficiency of hot-strip, usually scale breading will be carried out to Surfaces of Hot Rolled Strip before pickling, and straightening descaling mill is the key equipment abolishing belt steel surface iron scale, can also belt plate shape be improved simultaneously, reduce the sideslip of subsequent handling band steel.
Traditional straightening descaling mill comprises two groups of bending units and one group of resistance straightening unit, and is furnished with slewing rollers at its entrance side, and this kind of structure exists following drawback:
What 1, straightening descaling mill entrance side slewing rollers had is arranged in body, although compact conformation, changes very inconvenient and wastes time and energy; Meanwhile, when have the band steel of weld seam by time, although upper bending roll box can be opened fast, the operating position of lower bending roll box still remains unchanged, and band steel and working roll roll surface also keep in touch, weld seam by time can scratch roll surface and shorten the working roll life-span; In addition, inlet turning roll is arranged in outside body in order to avoid this problem by the straightening descaling mill also had, roll line position adjustment time simultaneously in order to coordinate weld seam to pass through, usually these slewing rollers are configured with the adjustable swing mechanism in position, also need configuration hydraulic pressure or pneumatic means, thus cause its structure relative complex.
2, in resistance straightening unit, the smoothing roll in two big roller footpaths is arranged in above band steel, and the fixed form that adopts is arranged more, also requires great effort very much time-consuming when more renewing roller; Also have and adopt manner to arrange, but these two roller arrangements up, weight is comparatively large, and when the fast opening mechanism of hydraulic pressure works, inertia is comparatively large, adds mechanism's burden.
3, hot-strip is after straightening descaling mill, can enter jockey pulley region thereafter; The alternating bending on jockey pulley of band steel after straightening scale breading is wound around advances, when the iron scale that its skin breakage is loosened is squeezed on jockey pulley, iron scale can come off further, and is scattered in jockey pulley region and the transitional region between jockey pulley and acid tank; Because the granularity of iron scale is very little, slight wind-force will cause oxidize soot to be flown upward everywhere, not only contaminated environment, also affects the normal operation of equipment.
As can be seen here, existing traditional straightening descaling mill has significant limitation, therefore, is necessary to design the technical problem that a kind of novel straightening descaling mill solves above-mentioned middle existence.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of straightening descaling mill, to solve strip steel weld joint by scratching the problem of upper and lower working roll roll surface during straightening descaling mill, simultaneously, be arranged in by resistance straightening unit a two big roller footpath smoothing roll below band steel, reducing mechanism is born; Another object of the present utility model sets up a brush roll arrangement at straightening descaling mill outlet side, does to remove loose iron scale further, to improve the de-scaling rate of hot-strip to the Surfaces of Hot Rolled Strip after scale breading.
For achieving the above object, the utility model is achieved through the following technical solutions:
The utility model provides a kind of straightening descaling mill, comprise frame, be located at the inlet turning roll of frame entrance side and two groups of bending units being located in frame and one group of resistance straightening unit, the first fast opening mechanism that described bending unit comprises bending roll box, lower bending roll box and drives upper bending roll box to move up and down, the second fast opening mechanism that described resistance straightening unit comprises upper straightening roll box, lower smoothing roll box and drives upper straightening roll box to move up and down, is characterized in that:
Also comprise the outlet turning roller being located at rack outlet side, described inlet turning roll and outlet turning roller are all fixed on outside frame, and are positioned at same position height; Described bending unit also comprises the first elevating mechanism driving lower bending roll box to move up and down; Described resistance straightening unit also comprises the second elevating mechanism driving the lower smoothing roll box with two big roller footpath smoothing rolls to move up and down, wherein:
The upper outside common tangent forming position line II of described inlet turning roll and outlet turning roller;
The lower outside common tangent forming position line I of the working roll initial position of described upper bending roll box and upper straightening roll box, the lower outside common tangent forming position line III of its maximum displacement position;
The upper outside common tangent forming position line IV of the working roll initial position of described lower bending roll box and lower smoothing roll box, the upper outside common tangent of its maximum displacement position is no more than the position line II;
The described position line II crosses line for band steel is empty, and be provided with the position line I above it, below is disposed with the position line III and the position line IV; The described position line III is the working roll operating position line of upper bending roll box and upper straightening roll box.
Further, also comprise gathering-device, described gathering-device comprises collection bucket, feeder and is positioned at the sealing plate of frame surrounding, described collection bucket is arranged at two lower bending roll boxes, lower smoothing roll box and frame gap each other, described feeder is arranged at immediately below frame, its upper end is connected with described collection bucket, and lower end is communicated with the first dedusting pipeline.
Further, also comprise blow device, described blow device comprises the middle jet pipe group of the upper jet pipe group being arranged at both sides above the described position line I and the lower jet pipe group being arranged at both sides below the described position line IV and centre, and described upper jet pipe group, lower jet pipe group and middle jet pipe group are by the jet pipe composition of some band nozzles.
Further, every root jet pipe of described upper jet pipe group is arranged at intervals with row's nozzle that direction is identical, its nozzle is tilted to lower layout towards the middle part of frame; Two row's nozzles that on every root jet pipe of described lower jet pipe group, interval setting direction is different, wherein row's nozzle tilts upward layout towards the middle part of frame, and another row's nozzle is arranged straight down; Every root jet pipe of described middle jet pipe group is arranged at intervals with two row's nozzles that direction is different, wherein row's nozzle is arranged straight down, and another row's nozzle level is arranged slightly downwards.
Further, also comprise brush roll arrangement, described brush roll arrangement comprises brush roll mechanism, lower brush roll mechanism and the brush roll bearing for installing brush roll mechanism and lower brush roll mechanism, and described upper brush roll mechanism comprises brush roll, for being connected to the top link at upper brush roll two ends and the upper adjusting device for two top links swings; Described lower brush roll mechanism comprises lower brush roll, for being connected to the lower swing arm at lower brush roll two ends and the lower adjusting device for two lower swing arms swings; Described brush roll bearing is fixed in frame, also can fixedly mount separately.
Further, described upper adjusting device and lower adjusting device are by two spiral lifts and synchronizing shaft composition, and described synchronizing shaft can be driven by motor, also can by manual actuation.
Further, described brush roll arrangement is provided with dust cover, the below of described dust cover is provided with dust removal port, and described dust removal port is communicated with the second dedusting pipeline.
Further, described brush roll arrangement is arranged at rack outlet side, also can be arranged at frame entrance side simultaneously.
The utility model has the advantage of:
1. the entrance side of straightening descaling mill of the present utility model outside Rack Body and outlet side are furnished with fixing slewing rollers, convenient for installation and maintenance, particularly when there being weld seam band steel to pass through, fast opening mechanism make to be with all working roller above steel fast on move on to the position line I, III, band steel operating position line becomes the position line II fast, band steel is not all contacted with all working roller above it, simultaneously, when designing, upper roll surface maximum functional position with all working roller below steel is all lower than the position line II, so not only band steel can not with upper, bottom working roll surface contact, but also the operating position that can remain in all working roller below band steel is constant, thus adjustment need not be re-started to all reduction parameters, the benefit of this arrangement be remove into, outside outlet turning roller, the all working roller of straightening descaling mill does not contact with the strip, thus avoid work roll surface and abraded by weld seam.After weld seam passes through, the oil cylinder of opening soon on top is depressed rapidly, and band steel is pressed onto operating position line III, thus whole straightening descaling mill quickly recovers to normal duty.
2. weight in resistance straightening unit lays particular stress on by straightening descaling mill of the present utility model, the smoothing roll in two big roller footpaths that inertia is larger is arranged in lower smoothing roll box, and be movable structure, elevating mechanism is relied on to realize elevating function, thus effectively reduce the burden of mechanism, meanwhile, roll change work is also brought conveniently.
3. be provided with blow device in straightening descaling mill of the present utility model, be arranged in the both sides up and down of band steel, the eliminating speed of the iron scale come off in straightening scale breading process can be accelerated, and utilize gravity principle, drain by the depression dust-removing pipeline connected is unified after collecting iron scale by gathering-device, good dedusting effect.
4. straightening descaling mill of the present utility model adds a brush roll arrangement at the outlet side of Rack Body, do further to remove loose iron scale work to the Surfaces of Hot Rolled Strip after scale breading, improve the de-scaling rate of hot-strip, simultaneously, brush roll arrangement is also equipped with adjusting device, adjustable brush roll and the contact of band steel, ensure that effect cut by good brush; Brush roll arrangement is provided with dust cover, and increase dust removal port, the iron scale dust utilizing depression dust-removing pipeline brush roll arrangement to be disposed is taken away, and this oxidize soot being just conducive to reducing jockey pulley operating area, straightening descaling mill rear end is scattered, and also mitigates the burden of follow-up pickling link.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from practice of the present utility model.Target of the present utility model and other advantages can be realized by description below and obtain.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is the utility model straightening descaling mill schematic diagram;
Reference numeral: 1-frame; 2-bending unit, the upper bending roll box of 21-, bending roll box under 22-, the fast opening mechanism of 23-first, 24-first elevating mechanism; 3-resistance straightening unit, 31-upper straightening roll box, smoothing roll box under 32-, the fast opening mechanism of 33-second, 34-second elevating mechanism; 4-inlet turning roll; 5-outlet turning roller; 6-gathering-device, 61-collection bucket, 62-feeder; 7-blow device, the upper jet pipe group of 71-, jet pipe group under 72-, jet pipe group in 73-; 8-brush roll arrangement, the upper brush roll mechanism of 81-, the upper brush roll of 811-, 812-top link, the upper adjusting device of 813-, brush roll under 821-, 822-lower swing arm, adjusting device under 823-, 83-brush roll bearing, 84-dust cover, 841-dust removal port.
Detailed description of the invention
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail; Should be appreciated that preferred embodiment only in order to the utility model is described, instead of in order to limit protection domain of the present utility model.
As shown in Figure 1, straightening descaling mill of the present utility model comprises frame 1, be located at the inlet turning roll 4 of frame 1 entrance side and the two groups of bending units 2 be located in frame 1 and one group of resistance straightening unit 3, described bending unit 2 comprises bending roll box 21, lower bending roll box 22 and the first fast opening mechanism 23 driving upper bending roll box 21 to move up and down, described resistance straightening unit 3 comprises upper straightening roll box 31, lower smoothing roll box 32 and the second fast opening mechanism 33 driving upper straightening roll box 31 to move up and down, also comprise the outlet turning roller 5 being located at frame 1 outlet side, described inlet turning roll 4 and outlet turning roller 5 are all fixed on frame 1 lateral wall, and be positioned at same position height, described bending unit 2 also comprises the first elevating mechanism 24 driving lower bending roll box 22 to move up and down, described resistance straightening unit 3 also comprises the second elevating mechanism 34 driving the lower smoothing roll box 33 with two big roller footpath smoothing rolls to move up and down.
Concrete, this equipment basic structure form for being disposed with two groups of bending units 2 and one group of resistance straightening unit composition 3 in frame 1 along its roll line direction, the version of two groups of bending units 2 is just the same, the entrance side of frame 1 and outlet side are respectively arranged with the fixing inlet turning roll 4 in position and outlet turning roller 5, and be positioned on the lateral wall of frame 1, and the mode be bolted and frame 1 are fixed together, because inlet turning roll 4 and outlet turning roller 5 are all positioned at outside frame 1 body, so install and safeguard very convenient; Described first fast opening mechanism 23 and the second fast opening mechanism 33 are for open hydraulic jack soon, its base is fixed in frame 1, joint respectively with upper bending roll box 21 and upper straightening roll box 31 affixed, move under realizing upper bending roll box 21 and upper straightening roll box 31 in the vertical direction; Simultaneously, the smoothing roll in the big roller footpath of two in resistance straightening unit 3 is arranged in lower smoothing roll box 31, to alleviate mechanism's burden, and be set to manner, be arranged in below band steel, realized the function that vertical direction is elevated by the second elevating mechanism 34, and utilize the encoder (not marking) configured to carry out accurate adjustment to aligning drafts thereon; Equally, lower bending roll box 22 is realized the function that vertical direction is elevated by the first elevating mechanism 24, and utilizes the encoder (not marking) configured to carry out accurate adjustment to bending drafts thereon; Described first elevating mechanism 24 and the second elevating mechanism 34 are spiral lift, and described spiral lift is driven by gear motor and realizes oscilaltion.
In the present embodiment, inlet turning roll 4 and outlet turning roller 5 position contour, and their upper outside common tangent forming position line II, this be band steel sky cross or weld seam by time band steel sky cross line, when the first fast opening mechanism 23 and the second fast opening mechanism 33 are in zero-bit, namely all working rolls be positioned at above band steel are in initial position, their lower outside common tangent forming position line I, this position line I also drops on the upper changing track for roll position line in frame 1 for all working rolls be positioned at above band steel, and when the first fast opening mechanism 23 and the second fast opening mechanism 33 are in maximum travel position, namely all working rolls be positioned at above band steel are in maximum displacement position, their lower outside common tangent forming position line III, this position line III is also all operating position lines being positioned at working roll above band steel, when the first elevating mechanism 24 and the second elevating mechanism 34 are in zero-bit, namely all working rolls be positioned at below band steel are in initial position, their upper outside common tangent forming position line IV, this position line IV also drops on the lower changing track for roll position line in frame 1 for all working rolls be positioned at below band steel, and when the first elevating mechanism 24 and the second elevating mechanism 34 are in maximum travel position, namely all working rolls be positioned at below band steel are in maximum displacement position, and their upper outside common tangent is no more than the position line II, be exactly simply, the position line I, II, III, IV is disposed with from top to bottom at vertical direction, its position line II be for control cincture steel sky cross or weld seam by time band steel the position line, prevent strip steel weld joint from contacting with upper and lower working roll roll surface, thus avoid weld seam by time scratch roll surface and shorten the working roll life-span.
The operating process of straightening descaling mill of the present utility model under different process is as follows:
1, normal operating conditions:
When be with steel normal through time, band steel between inlet turning roll 4 and outlet turning roller 5 is pressed down at the position line III place in the effect of the first fast opening mechanism 23 and the second fast opening mechanism 33 by the working roll on bending roll box 21 on two and a upper straightening roll box 31 respectively, and the working roll of two lower bending roll boxes 22 and a lower smoothing roll box 32 is in pre-set operating position respectively under the effect of the first elevating mechanism 24 and the second elevating mechanism 34, thus straightening scale breading is implemented to band steel.
2, weld seam state is crossed
When strip steel weld joint is passed through, first fast opening mechanism 23 and the second fast opening mechanism 33 fast retractile are to zero-bit, bending roll box 21 and upper straightening roll box 31 is made to be in the position line I, namely all working roller above steel is with all not contact with the strip, steel is now with to spring back to the position line II, because the maximum displacement operating position on all lower bending roll boxes 22 during design and lower smoothing roll box 32 is not all higher than the position line II, this belt transect steel by time do not contact with all working roller in frame, thus the work roll surface in all roller boxes can not be abraded, improve the service life of working roll, after weld seam passes through, first fast opening mechanism 23 and the second fast opening mechanism 33 are reached maximum travel position fast, at this moment steel is with to be pushed back to operating position line III again, and because the operating position of all roller boxes below band steel does not adjust, thus straightening scale breading function has quickly recovered to weld seam by front duty, improves the response speed of equipment.
3, steel sky is with to cross state:
When being with steel to be in empty state excessively, first fast opening mechanism 23 and the second fast opening mechanism 33 are in zero-bit, all roller boxes be positioned at above band steel are all in the position line I, all roller boxes be positioned at below band steel are all in the position line IV simultaneously, ensure that all roller boxes in frame all do not contact with the strip, thus avoid working roll scratch, extend the service life of working roll.
4, roll change state:
When needs carry out complete machine roller replacing operation, first fast opening mechanism 23 and the second fast opening mechanism 33 move on to zero-bit, all roller boxes be positioned at above band steel are in the position line I, first elevating mechanism 24 and the second elevating mechanism 34 move down into zero-bit, all roller boxes be positioned at below band steel are in the position line IV, now carry out complete machine roll change by roll change buggy.When needs carry out online roll change to single group bending unit 2, the fast opening mechanism 23 of corresponding to it first gets back to zero-bit, upper bending roll box 21 rises, lower bending roll box 22 moves down into zero-bit by the first elevating mechanism, then roll change buggy is utilized to pull out old bending unit 2, and push new bending unit, and same, the roller replacing mode of resistance straightening unit 3 and single to organize bending unit 2 the same.
As the improvement of the present embodiment, also comprise gathering-device 6, described gathering-device 6 comprises collection bucket 61, feeder 62 and is positioned at the sealing plate (not marking) of frame 1 surrounding, and its main purpose is used for the iron scale lower to the band steel passed through in frame drops after straightening scale breading and carries out collection and deal with the work.
Concrete, in frame 1, interval is furnished with multiple collection bucket 61, namely between described frame 1 entrance side and adjacent lower bending roll box 22, between two lower bending roll boxes 22 and gap of lower smoothing roll box respectively and between adjacent lower bending roll box 22 and frame 1 outlet side is provided with described collection bucket 61, and described feeder 62 is arranged at immediately below frame 1, iron scale under dropping with straightening scale breading on steel flow in the feeder 62 be communicated with it by collection bucket 61, discharge finally by the first depression dust-removing pipeline (unmarked) be communicated with is unified, good dedusting effect.
As the improvement of the present embodiment, also comprise blow device 7, described blow device 7 comprises the middle jet pipe group 73 of the upper jet pipe group 71 being arranged at both sides above the described position line I and the lower jet pipe group 72 being arranged at both sides below the described position line IV and centre, described upper jet pipe group 71, lower jet pipe group 72 and middle jet pipe group 73 are by the jet pipe composition of some band nozzles, be arranged in the both sides up and down of band steel, and every root jet pipe is furnished with several blows the different nozzle of firing angle degree, the iron scale be beneficial to like this on band steel is removed fast.
Concrete, be arranged at frame 1 entrance side and outlet side respectively and be arranged in upper jet pipe group 71 above the described position line I, be arranged at frame 1 entrance side and outlet side and the lower jet pipe group 72 be positioned at below the described position line IV and the jet pipe group 73 being arranged at two lower bending roll boxes 22 and lower smoothing roll box 32 place respectively respectively, every root jet pipe of described upper jet pipe group 71 is arranged at intervals with row's nozzle that direction is identical, its nozzle is tilted to lower layout towards the middle part of frame, for carrying out purging work to the band steel upper surface passed through below it; Two row's nozzles that on every root jet pipe of described lower jet pipe group 72, interval setting direction is different, wherein row's nozzle tilts upward layout towards the middle part of frame, for carrying out purging work to the band steel lower surface passed through above it, and another row's nozzle is arranged straight down, iron scale for accelerating free state enters in collection bucket 61, is beneficial to gathering-device 6 and collects; Further, the nozzle co-operating that the nozzle under upper jet pipe group 71 is tilted to and lower jet pipe group 72 tilt upward is at the entrance side of frame 1 or outlet side and form an air curtain, can effectively stop the iron scale in frame 1 to move to entrance side or outlet side; Every root jet pipe of described middle jet pipe group 73 is arranged at intervals with two row's nozzles that direction is different, wherein row's nozzle is arranged straight down, iron scale for accelerating free state enters in collection bucket 61, and another row's nozzle level is arranged slightly downwards, for purging the iron scale that the working roll box below all band steel is piled up.
As the improvement of the present embodiment, also comprise brush roll arrangement 8, described brush roll arrangement 8 comprises brush roll mechanism 81, lower brush roll mechanism 82 and the brush roll bearing 83 for fixing above brush roll mechanism 81 and lower brush roll mechanism 82, described upper brush roll mechanism 81 and lower brush roll mechanism 82 are positioned at the both sides up and down of band steel, and described upper brush roll mechanism 81 comprises brush roll 811, for being connected to the top link 812 at upper brush roll 811 two ends and the upper adjusting device 813 for two top links 812 swings; Described lower brush roll mechanism 82 comprises lower brush roll 821, for being connected to the lower swing arm 822 at lower brush roll 821 two ends and the lower adjusting device 823 for two lower swing arms 822 swings; Described brush roll bearing 83 is fixed in frame 1, also can fixedly mount separately, effectively adds the flexibility of brush roll arrangement 8, handled easily, is beneficial to maintenance.
Concrete, upper brush roll 811 and lower brush roll 821 are positioned at the both sides up and down of band steel; Top link 812 one end is hinged on brush roll bearing 83, and the other end and upper adjusting device 813 are hinged, and upper brush roll 811 is fixed on the bearing block of top link 812 end and (does not mark), is connected with top link 812 by upper adjusting device 813; Upper adjusting device 813 is formed primarily of two, front and back spiral lift (not marking) and synchronizing shaft (not marking), namely two spiral lifts are connected with two top links 812 respectively by synchronizing shaft, and drive synchronizing shaft by motor, thus drive two spiral lifts to realize the synchronous upper and lower swing in brush roll two ends, certainly in different embodiments, also manual mode can be adopted to drive synchronizing shaft, can achieve the above object equally.In like manner, the connected mode of lower brush roll 821 is the same with upper brush roll 811 with holding function, has not just stated tired here.When after upper and lower brush roller works a period of time, bristle on it has wearing and tearing, what now adjust upper brush roll 811 and lower brush roll 821 respectively by upper adjusting device 813 and lower adjusting device 823 swings up and down the contact adjusted with steel, to guarantee that obtaining good brush to iron scale cuts effect.
In the present embodiment, described brush roll arrangement 8 surrounding is provided with dust cover 84, whole brush roll arrangement can be covered, can prevent the iron scale dust brushing from flying upward everywhere; The below of described dust cover 84 is provided with dust removal port 841, and the general bellows (not marking) of crossing of described dust removal port 841 is connected with the second dedusting pipeline (not marking), the iron scale dust produced can be taken away in production process; And dust removal port 841 is arranged at the transmission side of frame 1, can not fore side be interfered with like this; Certainly in various embodiments, also can need according to technique the fore side being arranged in frame 1; And another dust removal port (not marking) also can be offered in the top of dust cover 84, to strengthen the emission effect of brush roll arrangement 8 internal oxidition iron sheet.
In the present embodiment, described brush roll arrangement 8 is arranged at frame 1 outlet side, certainly in various embodiments, also can arrange at frame entrance side simultaneously, to strengthen further, to the iron scale cleaning works on the belt steel surface entered before straightening descaling mill, improving the efficiency of follow-up straightening scale breading.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present utility model.
Claims (8)
1. a straightening descaling mill, comprise frame, be located at the inlet turning roll of frame entrance side and two groups of bending units being located in frame and one group of resistance straightening unit, the first fast opening mechanism that described bending unit comprises bending roll box, lower bending roll box and drives upper bending roll box to move up and down, the second fast opening mechanism that described resistance straightening unit comprises upper straightening roll box, lower smoothing roll box and drives upper straightening roll box to move up and down, is characterized in that:
Also comprise the outlet turning roller being located at rack outlet side, described inlet turning roll and outlet turning roller are all fixed on outside frame, and are positioned at same position height; Described bending unit also comprises the first elevating mechanism driving lower bending roll box to move up and down; Described resistance straightening unit also comprises the second elevating mechanism driving the lower smoothing roll box with two big roller footpath smoothing rolls to move up and down; Wherein:
The upper outside common tangent forming position line II of described inlet turning roll and outlet turning roller;
The lower outside common tangent forming position line I of the working roll initial position of described upper bending roll box and upper straightening roll box, the lower outside common tangent forming position line III of its maximum displacement position;
The upper outside common tangent forming position line IV of the working roll initial position of described lower bending roll box and lower smoothing roll box, the upper outside common tangent of its maximum displacement position is no more than the position line II;
The described position line II crosses line for band steel is empty, and be provided with the position line I above it, below is disposed with the position line III and the position line IV; The described position line III is the working roll operating position line of upper bending roll box and upper straightening roll box.
2. straightening descaling mill according to claim 1, it is characterized in that: also comprise gathering-device, described gathering-device comprises collection bucket, feeder and is positioned at the sealing plate of frame surrounding, described collection bucket is arranged at two lower bending roll boxes, lower smoothing roll box and frame gap each other, described feeder is arranged at immediately below frame, its upper end is connected with described collection bucket, and lower end is communicated with the first dedusting pipeline.
3. straightening descaling mill according to claim 1, it is characterized in that: also comprise blow device, described blow device comprises the middle jet pipe group of the upper jet pipe group being arranged at both sides above the described position line I and the lower jet pipe group being arranged at both sides below the described position line IV and centre, and described upper jet pipe group, lower jet pipe group and middle jet pipe group are by the jet pipe composition of some band nozzles.
4. straightening descaling mill according to claim 3, is characterized in that: every root jet pipe of described upper jet pipe group is arranged at intervals with row's nozzle that direction is identical, its nozzle is tilted to lower layout towards the middle part of frame; Two row's nozzles that on every root jet pipe of described lower jet pipe group, interval setting direction is different, wherein row's nozzle tilts upward layout towards the middle part of frame, and another row's nozzle is arranged straight down; Every root jet pipe of described middle jet pipe group is arranged at intervals with two row's nozzles that direction is different, wherein row's nozzle is arranged straight down, and another row's nozzle level is arranged slightly downwards.
5. straightening descaling mill according to claim 1, it is characterized in that: also comprise brush roll arrangement, described brush roll arrangement comprises brush roll mechanism, lower brush roll mechanism and the brush roll bearing for installing brush roll mechanism and lower brush roll mechanism, and described upper brush roll mechanism comprises brush roll, for being connected to the top link at upper brush roll two ends and the upper adjusting device for two top links swings; Described lower brush roll mechanism comprises lower brush roll, for being connected to the lower swing arm at lower brush roll two ends and the lower adjusting device for two lower swing arms swings; Described brush roll bearing is fixed in frame, also can fixedly mount separately.
6. straightening descaling mill according to claim 5, is characterized in that: described upper adjusting device and lower adjusting device are by two spiral lifts and synchronizing shaft composition, and described synchronizing shaft can be driven by motor, also can by manual actuation.
7. straightening descaling mill according to claim 6, it is characterized in that: described brush roll arrangement is provided with dust cover, the below of described dust cover is provided with dust removal port, and described dust removal port is communicated with the second dedusting pipeline.
8. the straightening descaling mill according to any one of claim 5-7, is characterized in that: described brush roll arrangement is arranged at rack outlet side, also can be arranged at frame entrance side simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859263.8U CN205096252U (en) | 2015-10-30 | 2015-10-30 | Draw strong descaling mill |
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| CN201520859263.8U CN205096252U (en) | 2015-10-30 | 2015-10-30 | Draw strong descaling mill |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170666A (en) * | 2015-10-30 | 2015-12-23 | 中冶赛迪工程技术股份有限公司 | Tension-leveling and descaling machine |
| CN105772509A (en) * | 2016-04-29 | 2016-07-20 | 北京科技大学 | Hot-rolled metal compound plate pre-straightening roller system |
-
2015
- 2015-10-30 CN CN201520859263.8U patent/CN205096252U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170666A (en) * | 2015-10-30 | 2015-12-23 | 中冶赛迪工程技术股份有限公司 | Tension-leveling and descaling machine |
| CN105170666B (en) * | 2015-10-30 | 2017-01-04 | 中冶赛迪工程技术股份有限公司 | A kind of straightening descaling mill |
| CN105772509A (en) * | 2016-04-29 | 2016-07-20 | 北京科技大学 | Hot-rolled metal compound plate pre-straightening roller system |
| CN105772509B (en) * | 2016-04-29 | 2017-12-05 | 北京科技大学 | A kind of hot-rolling metal composite plate pre-straightening roller system |
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